“The total amount of energy that a material can absorb before it fractures is a measure of the toughness of the material.”

“As was expected, the toughness of the wood was appreciably decreased with the application of heat.”

“Due to the toughness of the meat, it was cut very thin, but quick-fried with just a bit of crushed salt for seasoning.”

“He told me he was a young tough from the streets of Chicago.”

“This is a toughie to answer because I think it depends very much on the wider nature of the person involved.”

“Jean-Pierre's father likes to regale me of his days as a young motorcycle toughie in the Tehran nightclubs.”

“But Bogart's iconic image as the toughie was something he could rarely escape, even off screen.”

“It was a good mental toughener, though, which is exactly why I'll be going back next week.”

“You can combat the environment and maintain moisture by applying hoof toughener and through deep conditioning.”

“A coating is stable when a polymer modifier such as a toughener is mixed with the epoxy.”

“While we wondered at their street-corner, street-clothed hardiness a couple of other toughies turned up.”

“I know that ankle injuries are toughies to come back from, but this is getting a little extreme, isn't it?”

“All that was missing from the scene were a couple of pin-striped toughies carrying violin cases.”

“The proportion of tenderizers to tougheners is a relatively simple way to classify flour types.”

“What about using pine tar or some of those other hoof tougheners?”

“On the other hand, phase separated and viscoelastic tougheners create a large crack tip plastic zone.”

“Ki-tae and Cheol-su are a couple of young street toughs looking to get married to the mob.”

“These falsetto-led odes to love and innocence requiring precise singing were born on street corners among gangs of toughs.”

“Groups of toughs would observe and point out the best actions, or ridicule the softies who couldn't cope.”